Release date: 2016/04/22

Part 1 contains scenes from Rin (THE iDOLM@STER), Kyouko (Okusan), Pochako (Super Sonico): This gallery
Part 2 contains scenes from Nico and Eri (Love Live!): https://e-hentai.org/g/1327028/614b71489b/

Cut-in images are separated. Event and cut-in images are composed from extracted data, which may give more or less images than what is actually in the game, although I tried checking in-game whether or not certain combinations are possible.

dlsite
https://www.dlsite.com/maniax/work/=/product_id/RJ175005.html

Base +20, observer1980 +21